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1. 发明申请

US20070000699A1 Asymmetric graded composites for improved drill bits 有权
标题翻译：用于改进钻头的不对称分级复合材料
公开(公告)号：US20070000699A1
公开(公告)日：2007-01-04
申请号：US11478559
申请日：2006-06-29
申请人： Ramamurthy Viswanadham , Dah-Ben Liang , Gregory Lockwood
发明人： Ramamurthy Viswanadham , Dah-Ben Liang , Gregory Lockwood
IPC分类号： E21B10/36
CPC分类号： E21B10/56 , C23C30/005
摘要： A cutting tool that includes at least one tungsten carbide cutting element disposed on a support, wherein at least one tungsten carbide cutting element has at least one localized region having a material property different from the remaining region, wherein the at least one localized region having a different material property is prepared by a method including determining at least one localized region needing a variation in a material property different from the remaining region; coating a portion of a surface of the at least one tungsten carbide cutting element with a refractory material such that a surface corresponding to the localized region is left uncoated; and treating the coated cutting element with a selected agent to diffuse the selected agent into the localized region is disclosed.
摘要翻译：一种切削工具，其包括设置在支撑件上的至少一个碳化钨切割元件，其中至少一个碳化钨切割元件具有至少一个具有不同于其余区域的材料性质的局部区域，其中所述至少一个局部区域具有通过包括确定需要不同于剩余区域的材料性质的变化的至少一个局部区域的方法来制备不同的材料性质; 用耐火材料涂覆所述至少一个碳化钨切割元件的表面的一部分，使得对应于所述局部区域的表面不被涂覆; 并且公开了用所选择的试剂处理涂覆的切割元件以将所选择的试剂扩散到局部区域中。

2. 发明申请

US20070032173A1 Method of finishing cutting elements 有权
标题翻译：切割元素的整理方法
公开(公告)号：US20070032173A1
公开(公告)日：2007-02-08
申请号：US11197119
申请日：2005-08-04
申请人： Dah-Ben Liang , Ramamurthy Viswanadham
发明人： Dah-Ben Liang , Ramamurthy Viswanadham
IPC分类号： B24B1/00 , B24B31/00
CPC分类号： B24B31/104
摘要： A method for manufacturing drill bit inserts in which the inserts are finished in a centrifugal disc finishing machine. The centrifugal disc finishing machine comprises a configured surface rotating relative to a stationary receptacle, and the inserts may be finished with a mass of materials comprising at least one of a group of media, parts, detergent, and solution. Also, a method of increasing drill bit insert performance comprising accelerating a plurality of inserts in a high-energy finishing machine, wherein the acceleration results in a generally toroidal interaction between the inserts and at least one of the group comprising media, parts, detergent, and solution.
摘要翻译：一种用于制造钻头刀片的方法，其中刀片在离心盘精加工机中完成。离心盘整理机包括相对于固定容器旋转的配置表面，并且插入件可以用包含一组介质，部件，洗涤剂和溶液中的至少一种的材料制成。而且，增加钻头刀片性能的方法包括加速高能精加工机中的多个刀片，其中加速度导致插入件和包括介质，部件，洗涤剂的组中的至少一个组件之间的大致环形相互作用，和解决方案。

3. 发明申请

US20070175669A1 High-strength, high-toughness matrix bit bodies 有权
标题翻译：高强度，高韧性矩阵钻头体
公开(公告)号：US20070175669A1
公开(公告)日：2007-08-02
申请号：US11343225
申请日：2006-01-30
申请人： Dah-Ben Liang , Anthony Griffo , Thomas Oldham , Gregory Lockwood
发明人： Dah-Ben Liang , Anthony Griffo , Thomas Oldham , Gregory Lockwood
IPC分类号： E21B10/00
CPC分类号： E21B10/46 , B22F2005/002 , C22C29/08 , E21B10/55
摘要： A drill bit that includes a bit body formed from a matrix powder and at least one cutting element for engaging a formation, wherein the matrix powder included (a) stoichiometric tungsten carbide particles, (b) cemented tungsten carbide particles, and (c) cast tungsten carbide particles, and wherein after formation with the matrix powder, the bit has an erosion rate of less than 0.001 in/hr, a toughness of greater than 20 ksi(in0.5), and a transverse rupture strength of greater than 140 ksi is disclosed.
摘要翻译：一种钻头，其包括由基质粉末形成的一个位体和用于接合地层的至少一个切割元件，其中所述基质粉末包括（a）化学计量的碳化钨颗粒，（b）硬质合金碳化物颗粒，和（c）铸造碳化钨颗粒，并且其中在与基体粉末形成之后，该钻头的侵蚀速率小于0.001英寸/小时，韧性大于20ksi（在<0.05）和横向断裂公开了大于140ksi的强度。

4. 发明授权

US07549912B2 Method of finishing cutting elements 有权
标题翻译：切割元素的整理方法
公开(公告)号：US07549912B2
公开(公告)日：2009-06-23
申请号：US11197119
申请日：2005-08-04
申请人： Dah-Ben Liang , Ramamurthy K. Viswanadham
发明人： Dah-Ben Liang , Ramamurthy K. Viswanadham
IPC分类号： B24B31/108 , B21K5/06 , E21B10/46
CPC分类号： B24B31/104
摘要： A method for manufacturing drill bit inserts in which the inserts are finished in a centrifugal disc finishing machine. The centrifugal disc finishing machine comprises a configured surface rotating relative to a stationary receptacle, and the inserts may be finished with a mass of materials comprising at least one of a group of media, parts, detergent, and solution. Also, a method of increasing drill bit insert performance comprising accelerating a plurality of inserts in a high-energy finishing machine, wherein the acceleration results in a generally toroidal interaction between the inserts and at least one of the group comprising media, parts, detergent, and solution.
摘要翻译：一种用于制造钻头刀片的方法，其中刀片在离心盘精加工机中完成。离心盘整理机包括相对于固定容器旋转的配置表面，并且插入件可以用包含一组介质，部件，洗涤剂和溶液中的至少一种的材料制成。而且，增加钻头刀片性能的方法包括加速高能精加工机中的多个刀片，其中加速度导致插入件和包括介质，部件，洗涤剂的组中的至少一个组件之间的大致环形相互作用，和解决方案。

5. 发明申请

US20060005662A1 Hardfacing milled-tooth drill bits using super dense carbide pellets 有权
标题翻译：使用超密集的碳化物颗粒表面硬化磨齿钻头
公开(公告)号：US20060005662A1
公开(公告)日：2006-01-12
申请号：US11175120
申请日：2005-07-05
申请人： Greg Lockwood , Anthony Griffo , Dah-Ben Liang , Alysia White
发明人： Greg Lockwood , Anthony Griffo , Dah-Ben Liang , Alysia White
IPC分类号： C22C29/08
CPC分类号： C23C30/005 , B23K35/0266 , B23K35/327 , E21B10/50
摘要： A hardfacing composition for a drill bit, including a carbide phase comprising from about 50% to about 75% by weight of the hardfacing composition of a combination of 16 to 40 mesh cemented tungsten carbide and 80 to 200 mesh super dense tungsten carbide cobalt particles, wherein about 5% to about 50% by weight of the carbide phase comprises the super dense tungsten carbide cobalt particles, and a binder alloy including about 25% to about 50% by weight of the hardfacing composition.
摘要翻译：用于钻头的表面硬化组合物，包括碳化物相，其包含约40重量％至约75重量％的硬质合金组合物，其为16至40目的硬质合金碳化钨和80至200目的超致密碳化钨钴颗粒的组合，其中约5重量％至约50重量％的碳化物相包含超致密碳化钨钴颗粒和包含占该组合物的约25重量％至约50重量％的粘合剂合金。

6. 发明授权

US4549615A Single-pass notching and drilling tool and method of drilling a blast role therewith 失效
标题翻译：单程开槽和钻孔工具及其钻孔方法
公开(公告)号：US4549615A
公开(公告)日：1985-10-29
申请号：US397423
申请日：1982-07-12
申请人： Dah-Ben Liang , Robert S. Gulibon
发明人： Dah-Ben Liang , Robert S. Gulibon
IPC分类号： E21B7/00 , E21B7/28 , E21B10/40 , E21B10/58 , E21B17/04 , E21B10/38
CPC分类号： E21B7/28 , E21B10/40 , E21B10/58 , E21B17/04 , E21B7/001
摘要： Disclosed is a single-pass notching and drilling tool. The tool comprises an adaptor having a first threaded end for coupling with a power source, an opposed second threaded end, an enlarged diameter portion adjacent to the first threaded end and having a first abutment face and a mediate portion adjacent to the first axial abutment face and adjacent to the second threaded end. There is also a drill portion joined to the second threaded end of the adaptor and having a second axial abutment face. The tool further comprises a notching tool comprising a body having a central bore rotatably engaging the mediate portion of the adaptor. The notching tool is freely rotatable about the mediate portion independent of the rotation of the adaptor. The axial movement of the notching tool is bounded by the first and second axial abutment faces. Disclosed also is a method of drilling a blast hole with the single-pass notching and drilling tool.
摘要翻译：公开了一种单程切口和钻孔工具。该工具包括适配器，该适配器具有用于与动力源联接的第一螺纹端，相对的第二螺纹端，与第一螺纹端相邻的扩大直径部分，并且具有第一邻接面和邻近第一轴向邻接面的中间部分并且与第二螺纹端相邻。还有一个连接到适配器的第二螺纹端并具有第二轴向邻接面的钻头部分。该工具还包括切口工具，其包括具有可旋转地接合适配器的中间部分的中心孔的主体。开槽工具可以独立于适配器的旋转而围绕中间部分自由旋转。开槽工具的轴向移动由第一和第二轴向邻接面限定。还公开了使用单程切口和钻孔工具钻孔的方法。

7. 发明授权

US08323372B1 Low coefficient of thermal expansion cermet compositions 失效
标题翻译：低的热膨胀系数金属陶瓷组合物
公开(公告)号：US08323372B1
公开(公告)日：2012-12-04
申请号：US09494877
申请日：2000-01-31
申请人： Zhigang Fang , Anthony Griffo , Gregory T. Lockwood , Dah-Ben Liang
发明人： Zhigang Fang , Anthony Griffo , Gregory T. Lockwood , Dah-Ben Liang
IPC分类号： C22C29/00
CPC分类号： E21B10/46 , B22F3/156 , B22F2998/00 , C22C29/00 , C22C29/06 , E21B10/52
摘要： Low coefficient of thermal expansion (CTE) cermet compositions of this invention generally comprise a hard phase material and a ductile phase formed from a binder alloy, wherein the binder alloy is specially designed having a CTE that is closely matched to the hard phase material. Hard phase materials used to form low CTE compositions of this invention are selected from the group of carbides consisting of W, Ti, Mo, Nb, V, Si, Hf, Ta, and Cr carbides. The binder alloy is formed from a mixture of metals selected from the group consisting of Co, Ni, Fe, W, Mo, Ti, Ta, V, Nb, C, B, Cr, and Mn. In a preferred embodiment, low CTE compositions comprises WC as the hard phase material, and a ductile phase binder alloy formed from a mixture of Fe, Co, and Ni. The so-formed low CTE composition has a coefficient of thermal expansion that is less than that of conventional WC—Co at the same temperature and having the same metal content, thereby providing improved resistance to thermal shock and thermal fatigue related failure.
摘要翻译：本发明的低热膨胀系数（CTE）金属陶瓷组合物通常包括由粘合剂合金形成的硬质相和材料，其中粘合剂合金被特别设计成具有与硬相材料紧密匹配的CTE。用于形成本发明的低CTE组合物的硬相材料选自由W，Ti，Mo，Nb，V，Si，Hf，Ta和Cr碳化物组成的碳化物组。粘合剂合金由选自Co，Ni，Fe，W，Mo，Ti，Ta，V，Nb，C，B，Cr和Mn的金属的混合物形成。在优选实施方案中，低CTE组合物包含WC作为硬相材料，以及由Fe，Co和Ni的混合物形成的延性相粘合剂合金。如此形成的低CTE组合物在相同温度下具有比常规WC-Co低的热膨胀系数，并且具有相同的金属含量，从而提供对热冲击和热疲劳相关故障的改进的抗性。

8. 发明授权

US07475743B2 High-strength, high-toughness matrix bit bodies 有权
标题翻译：高强度，高韧性矩阵钻头体
公开(公告)号：US07475743B2
公开(公告)日：2009-01-13
申请号：US11343225
申请日：2006-01-30
申请人： Dah-Ben Liang , Anthony Griffo , Thomas W. Oldham , Gregory T. Lockwood
发明人： Dah-Ben Liang , Anthony Griffo , Thomas W. Oldham , Gregory T. Lockwood
IPC分类号： E21B10/00
CPC分类号： E21B10/46 , B22F2005/002 , C22C29/08 , E21B10/55
摘要： A drill bit that includes a bit body formed from a matrix powder and at least one cutting element for engaging a formation, wherein the matrix powder included (a) stoichiometric tungsten carbide particles, (b) cemented tungsten carbide particles, and (c) cast tungsten carbide particles, and wherein after formation with the matrix powder, the bit has an erosion rate of less than 0.001 in/hr, a toughness of greater than 20 ksi(in0.5), and a transverse rupture strength of greater than 140 ksi is disclosed.
摘要翻译：一种钻头，其包括由基质粉末形成的一个位体和用于接合地层的至少一个切割元件，其中所述基质粉末包括（a）化学计量的碳化钨颗粒，（b）硬质合金碳化物颗粒，和（c）铸造碳化钨颗粒，并且其中在与基体粉末形成之后，该钻头的侵蚀速率小于0.001英寸/小时，韧性大于20ksi（in.5），横向断裂强度大于140ksi 被披露。

9. 发明申请

US20050000317A1 Compositions having enhanced wear resistance 有权
标题翻译：具有增强耐磨性的组合物
公开(公告)号：US20050000317A1
公开(公告)日：2005-01-06
申请号：US10836595
申请日：2004-04-30
申请人： Dah-Ben Liang , Greg Lockwood , Anthony Griffo
发明人： Dah-Ben Liang , Greg Lockwood , Anthony Griffo
IPC分类号： B22F3/15 , C04B35/645 , C22C29/06 , C23C30/00 , E21B10/46 , E21B10/56 , E21B10/567
CPC分类号： E21B10/567 , B22F3/156 , B22F2005/001 , B22F2998/00 , C04B35/5626 , C04B35/64 , C04B35/6455 , C04B2235/3839 , C04B2235/3847 , C04B2235/405 , C04B2235/5436 , C04B2235/5472 , C04B2235/661 , C04B2235/96 , C22C29/06 , C23C30/005 , E21B10/46 , E21B10/56
摘要： A composite material includes a double cemented carbide and a coarse grain dopant, wherein the coarse grain is added in an amount sufficient to improve wear resistance of virgin double cemented carbide. The double cemented carbide may selected from the group of carbides consisting of W, Ti, Mo, Nb, V, Hf, Ta, and Cr carbides. The coarse grain dopant may also be at least one carbide selected from the group consisting of W, Ti, Mo, Nb, V, Hf, Ta, and Cr carbides. The coarse grain carbide may be between about 5% to about 90% by weight of the total carbide in the composite. Preferably, the coarse grain carbide is about 10% to about 50% by weight of the total carbide in the composite.
摘要翻译：复合材料包括双重硬质合金和粗颗粒掺杂剂，其中粗晶加入量足以提高原始双重硬质合金的耐磨性。双重硬质合金可以选自由W，Ti，Mo，Nb，V，Hf，Ta和Cr碳化物组成的碳化物组。粗晶粒掺杂剂也可以是选自W，Ti，Mo，Nb，V，Hf，Ta和Cr碳化物中的至少一种碳化物。粗晶粒碳化物可以占复合材料中总碳化物重量的约5％至约90％。优选地，粗晶粒碳化物为复合材料中总碳化物的约10重量％至约50重量％。

10. 发明授权

US06782958B2 Hardfacing for milled tooth drill bits 有权
标题翻译：用于铣削牙钻的硬面
公开(公告)号：US06782958B2
公开(公告)日：2004-08-31
申请号：US10108965
申请日：2002-03-28
申请人： Dah-Ben Liang , Alysia White , Greg Lockwood , Anthony Griffo
发明人： Dah-Ben Liang , Alysia White , Greg Lockwood , Anthony Griffo
IPC分类号： E21B1046
CPC分类号： C22C29/08 , B22F2005/001 , B22F2999/00 , B23K35/327 , E21B10/50 , B22F1/0003 , B22F9/04
摘要： In one embodiment, a hardfacing composition for a drill bit, including a carbide phase including from about 50% to about 80% by weight of the hardfacing composition of a combination of 80 to 200 mesh macro-crystalline tungsten carbide and 80 to 200 mesh crushed cast carbide, the crushed cast carbide being about 5% to 50% of the total weight of the carbide phase, and a binder alloy comprising about 20% to about 50% by weight of the hardfacing composition is disclosed. A hardfacing composition for a drill bit, including a carbide phase composed of sintered tungsten carbide having a particle size from about 80 to 200 mesh that is about 50% to about 80% by weight of the hardfacing composition, and a binder alloy forming about 20% to about 50% by weight of the hardfacing composition.
摘要翻译：在一个实施方案中，用于钻头的表面硬化组合物，包括碳化物相，其包含约80重量％至约80重量％的表面硬化组合物，其为80至200目的宏观结晶碳化钨和80至200目的粉碎的组合公开了硬质合金粉碎的碳化物为碳化物相的总重量的约5％至50％，包含约占硬化组合物重量的约20％至约50％的粘合剂合金。用于钻头的表面硬化组合物，包括由烧结碳化钨组成的碳化物相，其碳化物粒度为约80至200目，约为硬化组合物重量的约50％至约80％，形成约20 ％至约50重量％的表面硬化组合物。

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